Back in January, Chinese director-actress Jia Ling, 41, caught everyone by surprise when it was revealed that she lost 50kg in six months for her new film Yolo.

However, the star has not been seen in public since the announcement.

Well, seeing is believing, right?

With Yolo premiering last Friday, (Feb 9), Jia Ling made an appearance to promote her film, showing off her new trim physique in person for the first time.